"The US has provided credible evidence (on Lakhvi) to Pakistan," a senior US official told PTI on condition of anonymity.
The official, however, did not give any details on the issue, saying this is an ongoing legal matter.
The information provided by the US to Pakistan on Lashkar-e-Taiba (LeT) operations commander Lakhvi and others related to the Mumbai terrorist attack is credible, the official said.
Various security agencies and intelligence wings of the United States have done their own investigation with regard to the Mumbai terrorist attack.
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"To date, the Department of Justice and the Federal Bureau of Investigation have provided extensive assistance in the investigation of the Mumbai attacks, including substantial evidentiary assistance," a US Government official said.
"As President Obama has stated, the Mumbai perpetrators, financers, and sponsors must be held accountable for their crimes, and we have called on all governments to do just that," the official said.
"The Government of Pakistan has pledged its cooperation in bringing the perpetrators, financiers and sponsors of the Mumbai terrorist attacks to justice, and we urge Pakistan to follow through on that commitment," State Department Spokesperson Jen Psaki had said.
Lakhvi, the 55-year-old Mumbai attack mastermind, is currently in detention in Pakistan under a public security order. Lakhvi was detained last week before he could be released from jail following a court directive to set him free which had evoked a strong protest from India.